Torque pi control method of permanent magnet synchronous motor based on parameter detection

A permanent magnet synchronous motor and parameter detection technology, which is applied in the direction of motor generator control, electronic commutation motor control, control generator, etc., can solve the problem of difficult adjustment of PI controller parameters, so as to improve control performance and realize automatic adjustment , the effect of good static performance and dynamic performance

Active Publication Date: 2019-07-02
西安友康通讯科技有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] Another purpose of the present invention is to solve the problem that the PI controller parameters are difficult to adjust according to the parameters of the controlled object when the permanent magnet synchronous motor torque closed-loop control adopts the PI controller, and propose a permanent magnet synchronous motor torque PI Control Method

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  • Torque pi control method of permanent magnet synchronous motor based on parameter detection
  • Torque pi control method of permanent magnet synchronous motor based on parameter detection
  • Torque pi control method of permanent magnet synchronous motor based on parameter detection

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Embodiment Construction

[0041]The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0042] It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.

[0043] The present invention provides a parameter detection based permanent magnet synchronous motor torque PI control method, such as figure 1 As shown, the system adopted in the torque control method includes: a controller 110, a first power drive unit 120, a permanent magnet synchronous motor 130, a torque sensor 140, a stator voltage control unit 600, a second power drive unit 700, a temperature measuring Device 900 and recording instrument 500.

[0044] Wherein said controller 110 is made up of comparator 111, proportioner 112, integrator 113 and adder 114, and the first inp...

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Abstract

The invention discloses a permanent magnet synchronous motor torque PI regulation and control method based on parameter detection, and belongs to the field of permanent magnet synchronous motor control. A system adopted by the control method is composed of a controller, a first power driving unit, a permanent magnet synchronous motor, a torque sensor, a stator voltage control unit, a second power driving unit, a temperature measurement device and a recorder, wherein the controller is composed of a comparator, a proportioner, an integrator and a summator. The control method comprises the steps that equivalent torque inertia parameters Ai of the permanent magnet synchronous motor at different stator winding temperatures, and then a proportion control parameter Kp and an integral control parameter Ki of the controller are regulated. When debugging is conducted through the method, due to the fact that the parameters of the PI controller are regulated according to the parameters of the permanent magnet synchronous motor, the parameters of the PI controller can be regulated in a targeted mode, the blindness of parameter regulation of the PI controller is constrained, time and effort are saved, and a good torque control effect can be achieved.

Description

technical field [0001] The invention belongs to the field of permanent magnet synchronous motor control, and relates to a permanent magnet synchronous motor torque control system. More specifically, the invention relates to a parameter detection-based permanent magnet synchronous motor torque PI control method. Background technique [0002] The torque control of permanent magnet synchronous motor must adopt closed-loop control to obtain excellent torque control performance. The torque closed-loop control system of permanent magnet synchronous motor includes the controller and the controlled object. Targeted adjustment of PI (proportional-integral) controller parameters is a problem to be solved in the prior art. At present, in the known prior art, the proportional control parameters and integral control parameters of the PI controller are directly adjusted by trial and error method or empirical method, instead of adjusting according to the parameters of the controlled object...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/00H02P21/30
CPCH02P23/0004
Inventor 张今朝朱海燕
Owner 西安友康通讯科技有限公司
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